Canon’s MP27D calculator is a printer calculator designed for heavy office use. While it can print in two different colors and comes with a slide-out quick reference card, one small drawback to any calculator with a printer is that you need to replace the paper and ink ribbons from time to time. When the ink shows signs of fading, purchase compatible spools of ink ribbon to replace them yourself. Writer Bio

How to Change the Ink Ribbon in a Canon MP27D Calculator - 51